Add a Sorted iterator on flag set for help text and keep All unordered

[FollowTheProcess]

Summary

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.05%. Comparing base (1980fb2) to head (2dc8802).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #210      +/-   ##
==========================================
+ Coverage   84.94%   85.05%   +0.11%     
==========================================
  Files           9        9              
  Lines        2086     1633     -453     
==========================================
- Hits         1772     1389     -383     
+ Misses        245      175      -70     
  Partials       69       69              

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